Power discharge for mixing machines



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Odo 21 g "A. W. RYBECK POWER DISCHARGE FOR MIXING MACHINES.

I O 5 2 I w l A. W. RYBECK POWER DISCHARGE FOR MIXING MACHINES Filed April, 26,, 1922 2 Sheets-Sheet 2 Patented Oct 21, 1924;.

UNITED STATES PATENT OFF-ICE.

mom's w. annex, or MILWAUKEE, WISCONSIN, assrcno'n T0 1*. nsurrn co-., 1

or IILWAUKEE, wrs'co nsrm'a ooaroaa'rron or wrsoonsm.

POWER DISCHARGE FOR MIXING lllll AGHINES.

Application filed "April 26,

To all whom it may concern:

Be it known that I, AooLrH W. RYBEoK, a subject of the King of Sweden, and resident of'Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Power Discharges for Mixing Machines, of which the following is a description, reference being had to the accompanying drawlngs, which are a part of this specification.

This invention relates to certain new and useful improvements in material mixers and refers more particularly 'to a power actuated discharge. spout for discharging materials from the mixing drum thereof.

In material mixers of that type more especially designed for mixing concrete for use in road or other construction work, it

has been customary to swing the discharge spout to and from discharging' position by manually operated means and, by reason of the inner or receiving end of thespout intercepting the material in the drum when jects to provide means for moving the discharge spout to and from discharging position which derives its power. from the m1x- -ing drum drive.

It is a further object of this invention to provide power operated means for the dis-- chargespout equip ed with automatic stops for disconnecting t e spout from the power means when, thesame. reaches either of its limits of movement.

This invention has for a still further ob ject to provide a power operated discharge spout having an improved means for connecting the same witha drive unit whereby economy of manufacture and efficiency of operation are assured.

With the above and other obiects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claim s-,it being'understood that such 1922. Serial No. 556,778.

changesin the precise embodiment of the herein disclosed invention may be made as l so far devised for the practical application of the principles thereof, and in which:

Flgure 1 is a fragmentary View looking at the forward or discharge end of a ma- I terial mixing machine illustrating the manner of mounting the transmission drive for the discharge spout on the machine frame work; p Figure 2 is a fragmentary view, partly in side elevation and partly in section, looking on the plane of line 22 of Figure 1;

Figure 3 is a view, partly in transverse section and partly in elevation, taken through the power transmission for thedischarge spout on the plane of 1ine. 3-3 of Figure 4, and v,

, Figure tis a-view, partly in transverse section and partly in elevation, taken through Figure 3 on the plane of line 44.

Referring now more particularly to the Q- accompanying drawings, in which like numerals designate like parts throughout the several views; numeral 5 designates a forward transverse sill of a mixing machine from which extend two upwardly and in- Wardly inclined side brace beams 6, but one being illustrated in the drawings, and 7, a,

in drum 7 and, when they have been sufii- .c'iently mixed, are discharged through an opening 10 in the rear end of the drum by projecting the inner end 11 of a discharge spout 12 into the drum through the opening 10 to intercept the materials; Spout 12 is mounted, in the manner hereinafter de- I scribed, so that when its inner end 11 intercepts the materials within the drum, its outer discharge end 13 is positioned below its inner end and the materials readily dis charged into any suitable receptacle.

Sp ut 12 is pivotally mounted between suspen Intermediately journaled in bearings 19 carried by beams.6 and bracket is a rock shaft 20 on which is mounted, intermediate the arms of bracket 15, a lever 21, the outer end of which is connected to one end 22 of an adjustable rod 23. The other end 24 of rod 23 is pivotally mounted between the outer ends of levers 14 so that a clockwise rotation of shaft 20, with reference to Fig ure .2, will swm spout-12 in the direction of the arrow an position its end 11 within drum 7 to interce t the material therein and arrange its disc arge end 13 on a lower plane to discharge materials intercepted by the spout. Her'etofore, manual means have generally been employed to move spout 12 to and from discharge position and, as considerable energ is required to project the inner end of the-spout into the path of the material, I

provide power means for operating shaft 20 29 havi clutch faces 30 on opposite sides thereof a ted for engagement with clutch. faces 31 of veled gears 32 freely rotatably pinion whereby'the operator can, y the manipulation of a foot pedal, connect shaft 20 with a source of power to swing the spout to either'of its two positions, the power means being preferably automatically disconnected upon the spout reaching either of. its limits of. movement. .In the present construction, I have found it highly desirable to obtain power for operating the spout from the drum drive gear -8 by meshing therewith a ar carried by the power take-off shaft of -a transmission Int 27 Shaft 26 is journaled in bushings 28 within the c of thetransmission unit, and slidably splmed on the shaft intermediate the bushings is a movable clutch member jonrnaled on bushings 28. Journaled in the transmission casing transversely of a shaft 26 is a worm shaft 33 on one end of which is mounted a beveled gear 34 with which both of the gears 32 mesh, whereby connection of one gear 32 with shaft 26, by the engagement of the adjacent clutch face with the clutch face of said gear, will rotate gear 34 in one direction and connection of the other gear 32 with shaft 26 will rotd'riorl 'of the tate 34 m a reverse direction, gear 34 being inactive when the clutch member is in an intermediate 'tion.

Mounted on e 3 is a worm 35 with which meshes a worm wheel 36 fixed to a shaft 37, one end of which is positioned extransmission housing and has a lever 38 with which the means slidable u lower end of an adjustable connecting rod 39 is pivotally. connected, the upper end of rod 39 being pivotally secured to the outer end of a lever 40 fixed to shaft 20.

A rotation of shaft 37, through the medium of the transmission unit, in the direction of the arrow in Figure 1, will swing the s ut into discharging ition and, when t e spout reaches its limit of movement, clutch 30 is moved to neutral position by an adjustable sto 41, carried by an arm 42 mounted on s aft 37, engaging the outer end of a lever 43. Lever 43 is carried by a gear shift rod 44-on which is mounted a forked arm 45 having bearing blocks 46 engageable in an annular groove formed in the clutch member.

When the spout is to be returned to inoperative position, rod 44 is rotated in a clockwise direction, with reference to Figure 4, by a' pedal 45 to mesh the clutch member with the gear 32 to the left thereof to thus rotate shaft 37 in a d rection reverse to the arrow in Figure 1 until an adjustable stop 46', carried by an arm 47 mounted on shaft 37, engages lever 43 and shifts the clutch member to neutral position.

Clutch member 30 is yieldably secured in neutral position by a spring 48 avin a recessed or outstruck portion 49 in w ich a lug or rojection carried by lever 43 is engageab e when the same is in neutral position.

What I claim as my invention is:

1. In a material mixin machine, a discharge spout adapted to moved into operative and inoperative positio power operating means for-the same, sai means including a drive shaft and a driven shaft, shiftable means for disconnecting the latter from the former and causing its movement in reverse directions, a third shaft connected to said spout and ads ted to cause the movemet of the same, sai third shaft being operated by said driven shaft, and elements carried by said third shaft and adapted to operate said shiftable means upon the cum p etion of the movement of the spout to one of its said positions.

2. In a material mixing machine, a diecharge spout adapted tobe moved into operative and inoperative positions, power operating means for the same, said means including a drive shaft and a driven shaft, pon said drive shaft for connecting the driven shaft thereto and operating the same in reverse directions, a

third shaft connected to said spout and adapted to move the same into its several positions, said third shaft being operated by said driven shaft, and elements carried said third shaft for ope said slidab means upon the completion 0 the movement of the spout to one of its said 'tiona 3,.lnamaterialminngmagaad charge spout adapted to be moved into opshaft for operating said slidable means upon the completion of one movement of the spout.

4. In a material mixing machine, a discharge spout adapted to be moved into operative and inoperative positions, power operating means therefor, said meansincluding a drive shaft and a driven shaft, means slidable upon said drive shaft for connecting the driven shaft thereto and operating the same in reverse directionameans for operating said slidable means,'a rock shaft for supporting said operating means,;a lurality of arms connected to said rock shaft. for moving thesame, a third shaft connectedto said spout and adapted'to cause the movement of the same, said third shaft being operated by said driven shaft, and elements carried by said third shaft for engagement with one of said arms for operating said slidable means upon the completion of one movement of the spout 5. In a material mixing machine, a discharge spout therefor and adapted to be moved into operative and inoperative positions, power operating means for said spout,

said means including a drive shaft and a driven shaft, means slidable upon said drive shaft for connecting the driven shaft thereto and operating the same in reverse directions, means for o erating .said slidable means, a rock shaft or supporting said operatin means, a hand lever connected to one end 0 said roclz shaft and an arm at the other end,-a third shaft connected to said spout and adapted to cause the movement of the same into its several positions, said third shaft being operated by said driven shaft, and adjustable elements carried by said third shaft for engagement with said arm upon the completion of either movement of the spout.

p In testimony whereof I aflix my signature.

ADOLPH w. RYBECK. 

